Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 12
A plane wave is incident at an angle of 60° on the surface separating two media. If the velocity of the wave in medium 1 is 300 m/s and in medium 2 is 150 m/s, what is the angle of refraction?
A
30°
B
45°
C
60°
D
90°
Correct Answer
Option A
Detailed Explanation
Using Snell's law, n1 sin i = n2 sin r. Given v1 = 300 m/s, v2 = 150 m/s, and i = 60°, we find sin r = (v2/v1) * sin i = (150/300) * sin 60° = 0.5, leading to r = 30°.
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